Improvement in refrigerators



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AUGUSTUS H. PHELPS, OE TRENTON, ASSIGNOR'TO PHTNEAS E. SAUNDERS'AND MARY E. PHELPS, OE SAME PLAGE, AND JOSEPH OOOK, OF DETROIT, MICHIGAN.

.hettersPaterit No. 108,386, dated October 1,8, 1.870.

'IMPROVEMENT IN REFRIGERAToRs,

The Schedulereferred to 'in mese Letters Patent and-making part of the sama To all 'whom it may concern.-

YBe it known that I, AUGUSTUS H. -PHELPS, of Trenton, in the county of Wayne and State of `Michigan, have invented a new and useful Iml'Jx-Ovement in Refrigerators; and I do hereby declare that the following is a full, clear, and exact description thereof,

which will enable others skilled in the art to make and use the same, reference being had to the accompanying'drawing forming part of this specification.

llhis invention relates to improvements in refrigerators, and consists in a novel arrangement with the cooling-chamber of a removable ice-receptacle, and an air-circulating tube,'calculated to causeI such move` nient of the air Within the cooling-chamber as toeool it very quickly after the ice isput in. p

Figure 1 is a longitudinal sectional elevation of my improved refrigerator, and .l

Figure 2 isa transverse section of thesame. Similar letters of reference indicate corresponding parts. A y

A is the cooling-chamber for containing the article to be preserved. It is arranged in the outer. case B,

. and non-heat-condnct-ing packing C, in the ordinary or any approved way.

D is my improved ice-receptacle or pocket, which I l prefer to make in the form indicated` in the drawing,

having a wide, open mouth at the top, and terminating in the narrow form at the bottom.

This pocket, having an opening at the bottom, and being provided with the tube Or iluc E, having the upper end projeotingvthrough one side, and the other terminating at the opening at the bottom, I suspend in the chamber A, fi'om the' top, preferably at the rear and behind the door of the said chamber, and I provide it with a cover, F.

The ice and salt, or otherrefrigerating-mixture, being placed in the pocket D, will cool the airin ue E, so that it, being heavier than the air in chamber A1 will fall to the bottom thereof, causing the lighter air in A to enter the top of E, and therebya circula-A t-ion will be set up which will cause all the air, to come in contact withthe cold, and be speedily cooled. The escape-pipe G is arranged near the mouth oi' the pocket, when the bottom of A is made lowest, and

a trap, H, is provided, to exclude the air. 4

As the freezing-compounds, especially saltV and ice,

y are liable to reduce the temperature too low for some articles, it is highly desirable to be able to determine the temperature withontopening the refrigerator. For this purpose I arrange a thermometer, I, in. a suitable recess in the side of the case, behind a glass plate, and I connect the Vbulb with the chamber Aby a pipe, K, calculated to -let the cold air therein circulate freely around it; The glass may be covered by a slide.

My improved pocket with the air-tube may be madevpractically useful in cars, for transport-ing perishablearticles, by hanging it -up therein whenV properly charged, and hanging the walls of the car with felt, India rubber, or other non-conducting sheets which will exclude the external air.

A circulation will be established and maintained therein the same as in the iefrig'erating-case here as specified.

- AUGUSTUS H. PHELPS.

Witnesses:

JOHN STEIGHT, EDWIN SAN-Driss.

` shown, so that ordinarycars may, with slight modifi- A 

